1. Dual relay output, five output modes adjustable; 2. Nine levels of sensitivity are adjustable; 3. The working frequency of the coil is adjustable; 4. A2 relay output delay 0 ~ 4.5 seconds, nine levels adjustable, optimizing high chassis vehicle detection; 5. Coil lightning protection (pressure sensitive, self recovery insurance and TVS), 4000V AC; 6. Working voltage: AC 220 / 110V ± 10% 50Hz, optional. See the label of the machine body for details; Rated power: 4.5w; 7. Working temperature: - 25 ℃ ~ 65 ℃; 8. Working humidity: ≤ 95% (no condensation); 9. Working frequency: 20kHz ~ 170khz; 10. Reaction time: 10ms; 11. Size (including base): 100 × seventy × 118mm long × wide × High)